硬膜外注射吗啡对兔急性缺血再灌注后左心功能的影响

被引:1
作者
刘多辉 [1 ]
王刚 [2 ]
雷志礼 [1 ]
韩曙君 [1 ]
机构
[1] 武警总医院麻醉科
[2] 解放军总医院心外科麻醉研究室
关键词
吗啡; 注射,硬膜外; 心肌; 再灌注损伤; 兔;
D O I
暂无
中图分类号
R96 [药理学];
学科分类号
100602 ; 100706 ;
摘要
目的在兔急性心梗再灌注模型中通过硬膜外给予吗啡,探讨其对兔心肌急性缺血再灌注损伤的保护作用。方法采取开胸结扎LAD(left anterior descending,左前降支)的急性心肌梗死模型,结扎冠状动脉LAD 30min后,松开结扎线,再灌注4 h。新西兰兔22只随机分成2组:①硬膜外吗啡组:经硬膜外注入吗啡(0.25 mg/kg,配成0.5 mL溶液);②对照组:经硬膜外注入生理盐水0.5 mL。缺血再灌注后逐层关胸,4周后行超声心动图检查。结果缺血再灌注后4周,两组LVEDD和LVESD均明显增大,但以对照组为甚,组间比较差异有显著性(P<0.05);而LVEF和LVFS,在缺血再灌注后4周硬膜外吗啡组分别降低了9.36%和8.24%,对照组分别降低了13.53%和12.18%,对照组比硬膜外组更显著(P<0.05),左室心功能硬膜外吗啡组好于对照组(LVEF:69.73%vs.62.99%;LVFS:31.39%vs.26.59%;LVEDD:14.35 vs.16.96;LVESD:9.52 vs.12.01),差异有统计学意义(P<0.05)。结论硬膜外注射吗啡能改善缺血再灌注后左心功能,并对缺血再灌注心肌有明显的保护作用。
引用
收藏
页码:383 / 386+399 +399
页数:5
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